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-rw-r--r--net/ceph/auth_x.c7
1 files changed, 4 insertions, 3 deletions
diff --git a/net/ceph/auth_x.c b/net/ceph/auth_x.c
index a0905f0..4d14dc8 100644
--- a/net/ceph/auth_x.c
+++ b/net/ceph/auth_x.c
@@ -308,8 +308,8 @@ static int ceph_x_build_authorizer(struct ceph_auth_client *ac,
if (ret)
goto out_au;
- maxlen = sizeof(*msg_a) + sizeof(msg_b) +
- ceph_x_encrypt_buflen(ticket_blob_len);
+ maxlen = sizeof(*msg_a) + ticket_blob_len +
+ ceph_x_encrypt_buflen(sizeof(msg_b));
dout(" need len %d\n", maxlen);
if (au->buf && au->buf->alloc_len < maxlen) {
ceph_buffer_put(au->buf);
@@ -350,11 +350,12 @@ static int ceph_x_build_authorizer(struct ceph_auth_client *ac,
p, end - p);
if (ret < 0)
goto out_au;
+
p += ret;
+ WARN_ON(p > end);
au->buf->vec.iov_len = p - au->buf->vec.iov_base;
dout(" built authorizer nonce %llx len %d\n", au->nonce,
(int)au->buf->vec.iov_len);
- BUG_ON(au->buf->vec.iov_len > maxlen);
return 0;
out_au:
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